Drag-saw



Mode G. H. BOSTELMANN.

DRAG SAW.

No. 417,980. Patented Dec. 24, 1889:

PETERS. Phm-Limo m her, Washington. D c

UNITED STATES PATENT OFFICE.

AUGUST H. BOSTELMANN, OF LUTl-IERVILLE, ARKANSAS.

DRAG-SAW.

SPECIFICATION forming part of Letters Patent No. 417,980, dated December24:, 1889.

Application filed July 3, 1889. Serial No. 316,459. (No model.)

To aZZ whom it may concern:

Be it known that 1, AUGUST G. H. BOSTEL- MANN, a citizen of the UnitedStates, residing at Lutherville, in the county of Johnson and State ofArkansas, have invented a new and useful Drag-Saw, of which thefollowing is a specification.

My invention relates to improvements in d rag-saws; and it consists incertain novel features hereinafter described and claimed.

In the accompanying drawings, Figure 1 is a perspective view showing thedevice arranged to saw a standing tree, and Fig. 2 is a similar viewshowing it arranged to saw a log. Fig. 3 is a detail sectional view.

Referring to the drawings by letter, A designates the frame, consistingof the beam B and the foot 0, pivoted thereto. The said foot consists ofthe standard D and the crossbar E, secured to the end of the same andprovided at its extremities with the securing points or teeth F. Thiscross-bar is connected with the standard by a brace G, as clearly shown,and the standard is pivoted to the beam B by a screw H, which engages anut I, secured within the beam and passes through the end of thestandard, as clearly shown.

The beam is provided at one end with a tooth or securing-point J, whichis adapted to be driven into the tree or log to secure the beam theretoin its operative position. Near the opposite end of the beam I securethe upright K, to the upper end of which I secure the upper end of aspring L, the lower end of said spring being secured to the saw M, asclearly shown.

In practice, when it is desired to cut down a tree, the machine isarranged as shown in Fig. 1, the beam B, the saw-blade, and the springbeing arranged in a horizontal position, while the foot 0 is turned to avertical position and the securing-points F driven into the ground, aswill be readily understood. The operator then reciprocates the saw so asto cut into and through the tree. WVhen the operator draws the sawtoward himself, the spring will be bent, so that upon the returnstrokethe resiliency of the spring will draw the saw to its initial position.WVhen it is desired to cut logs, the foot is turned on its pivot so asto support the saw and the beam and their connections in a verticalposition, as shown in Fig. 2, and the saw is then operated in the mannerabove described.

From the foregoing description it will be seen that I have provided amachine which is composed of very few part-s.

The saw is drawn toward the operator by hand, and will be returned toits initial position by the spring, as before stated, thereby giving asmuch power to the return-stroke as to the forward stroke, andconsequently rendering the operation of the machine very rapid.

It will be observed that the machine operates equally well when actingupon either a log or a tree, and that it is very light, and when set upfor use will be firmly secured in position.

Having fully described my invention, what I claim, and desire to secureby Letters Patent, is

The improved drag-saw herein described and shown, consisting of the beamB, the nut I, secured within the beam, the foot 0, the screw H, passingthrough the foot and engaging said nut, the upright K, secured to thebeam, the leaf-spring L, having its upper end secured to the upper endof the standard, and the saw-blade having one end secured to the lowerend of the spring, as specified.

In testimony that I claim the foregoing as my own I have hereto affixedmy signature in presence of two witnesses.

AUGUST G. H. BOSTELMANN.

Witnesses:

EMANUEL A. Meme, 0. BUEHRING.

